Rui
31/03/2015 • 02:07
C n,p = n!/p!*(n-p)!
C 12,3= 12!/3!*(12-3)!
=12*11*10*9!/3!*9! [Eliminamos o 9!]
=12*11*10/6
=1320/6
=220
C 12,3= 12!/3!*(12-3)!
=12*11*10*9!/3!*9! [Eliminamos o 9!]
=12*11*10/6
=1320/6
=220